package cn.lhjl.day04;

public class Num {
    int num = 10;

    public void show() {
        int num = 20;
        class A{
            int num=30;
            public void show(){
                final int num=40;
                System.out.println(num);
                System.out.println(this.num);
                System.out.println(Num.this.num);

            }
        }
        A a = new A();
        a.show();

    }
}
